Performance statistics
Refer to the
5620 SAM Statistics Management Guide
to find the steps required to
configure 5620 SAM to retrieve and process performance statistics. Note that two steps
are required to enable the collection of performance statistics from the network. First, a
policy is defined which specifies a set of polling periods for various MIBs. Second, the
policy is applied to a number of network elements.
In general, enabling the statistics collection of a MIB will result in one statistics record
being collected, at the specified polling period, for each network object to which the MIB
applies.
For example, consider a policy is created with only the rtr.L2AccessDhcpRelayCfgStats
MIB enabled for collection at 15-minute intervals. That policy is assigned to only two
network elements which each contain 500 L2 Access Interfaces. As a result of this action,
5620 SAM will collect 1,000 statistics records from the network every 15 minutes.
The quantity of resources which are allocated to the retrieval and processing of
performance statistics does not depend significantly on the number of CPU Cores
available to the 5620 SAM Server or Auxiliary Statistics collector software. The tables
below show the maximum number of performance statistics that can be retrieved and
processed by the 5620 SAM server and the 5620 SAM Auxiliary Statistics Collector
every 15 minutes.
Table 6-6
Maximum number of performance statistics records processed by a
5620 SAM Server
Number of CPU cores on 5620 SAM
Server workstations
Maximum number of performance statistics records per 15-minute
interval
Collocated configuration
Distributed configuration
4 or greater
50,000
150,000
Table 6-7
Maximum number of performance statistics records processed by a
5620 SAM Statistics Auxiliary
Number of Active
Auxiliary Statistics
Collectors
Maximum number of performance statistics records per 15-minute interval
Statistics collection with SAM Database
Statistics collection with
Auxiliary Database
logTofile only
8 CPU Cores, 16GB
RAM
12 CPU Cores,
24GB RAM
12 CPU Cores, 32GB RAM
12 CPU Cores, 24GB RAM
1
500,000
2,000,000
2,000,000
2,000,000
2
500,000
2,000,000
4,000,000
4,000,000
3
500,000
2,000,000
4,000,000
4,000,000
Scaling
Scaling guidelines for statistics collection
Statistics collection
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5620 SAM
3HE-09809-AAAG-TQZZA 13.0 R7
Issue 1
December 2015
6-9
